EM-1340
Cosine rule
E Math · Secondary 3 · Medium · Cosine rule
A ship sails 60 km due east from port A to B, then 90 km on a bearing of to C. Using the Cosine Rule, find the distance AC.
- 130.8 km
- 90.0 km
- 118.3 km
- 150.0 km
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